Saab Ab

Stal-laval Apparat Ab

Lars Löfgren

Nils-Gunnar Jaktlund

Max Krogager

Anders Westerdahl

Artur Stlund

A door lock for locking a door to an underlying structure. A machine element disposed in connection to a through opening in the underlying structure is arranged so as to engage a bolt that is insertable into a through opening in the door. The machine element is inserted through the opening in the underlying structure to a position at which the openings in the door and the underlying structure form, together with the part of the machine element that extends outside of the underlying structure, a length that is longer than the bolt length, while at the same time an internal thread on the machine element extends sufficiently far through the underlying structure that, with the joint mounted, it engages the bolt to create the joint. Also, a method for manufacturing the door lock.

Door lock and method for manufacturing said door lock

The invention concerns a method for reinforcing a double-shell structure in which a cellular core () is arranged between a first shell () and a second shell (). In the method according to the invention, at least one cavity is formed in the double-shell structure from an opening in the first shell into the cellular core () so that the cavity substantially extends through the cellular core () to the second shell. Fixative () is injected into the cavity. A stiff bar () is introduced into the cavity, whereupon excess fixative () is allowed to pass out of the cavity. Finally, the fixative left in the cavity is cured.

Method for reinforcing a double-shell structure

A fluidizable bed apparatus comprises a container containing a bed of fluidizable particulate material which becomes hot in use. The apparatus is characterized in that it includes at least one passage for the flow of cooling medium therethrough arranged beneath a bottom wall of the container. The or each passage has communicating therewith at least one inlet, preferably arranged beneath the bottom wall, and at least one outlet, preferably arranged adjacent side walls of the container. Nozzles for supplying fluidizing medium to the container for fluidizing the bed are arranged to pass through the bottom wall of the container.

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Linköping, Sweden

Lars Löfgren